| [X] | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934 |
|-----|-------------------------------------------------------------------------------------|

| [  ] | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|----------------|------------------------------------------------------------------------------------------|

| Delaware                                                       |   | 95-4596322                           |
|----------------------------------------------------------------|--------|--------------------------------------|
| (State or Other Jurisdiction of Incorporation or Organization) |   | (I.R.S. Employer Identification No.) |
|                                                           |   |                                 |
| 888 Prospect Street, Suite 110, La Jolla, California           |   | 92037                                |
| (Address of Principal Executive Offices)                       |   | (Zip Code)                           |

| Regulation S-K Exhibit Number |   | Document                                                                                                                                                      |   | Reference to Prior Filing or Exhibit Number Attached Hereto |
|-------------------------------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------------------------------------------------------|
|                          |   |                                                                                                                                                          |   |                                                        |
| 3.1                           |   | Certificate of Incorporation                                                                                                                                  |   | ************                                                |
| 3.2                           |   | Bylaws, as amended                                                                                                                                            |   | ***                                                         |
| 4                             |   | Instruments Defining the Rights of Security Holders, Including Indentures                                                                                     |   | **********                                                  |
| 10.1                          |   | 2005 Re-Designated, Amended and Restated Stock Option Plan For Nonemployee Directors (“NEDP”)                                                     |   | *****                                                       |
| 10.2                          |   | 2005 Re-Designated, Amended and Restated Employee Stock Incentive Plan (“ESIP”)                                                                   |   | ********                                                    |
| 10.3a                         |   | 409A Consolidated Nonqualified (Employer Securities Only) 2005 Deferred Compensation Plan                                                                     |   | ***                                                         |
| 10.3b                         |   | 409A Consolidated Nonqualified (Non-Employer Securities) 2005 Deferred Compensation Plan                                                                      |   | ***                                                         |
| 10.3c                         |   | Consolidated Nonqualified (Employer Securities Only) Deferred Compensation Plan                                                                               |   | ***                                                         |
| 10.3d                         |   | Consolidated Nonqualified (Non-Employer Securities) Deferred Compensation Plan                                                                                |   | ***                                                         |
| 10.4                          |   | Supplemental Salary Savings Plan                                                                                                                              |   | *                                                           |
| 10.5a                         |   | Amended and Restated Employment Agreement with George W. Haligowski                                                                                           |   | ********                                                    |
| 10.5b                         |   | Non-Competition and Non-Solicitation Agreement with George W. Haligowski                                                                                      |   | ********                                                    |
| 10.5c                         |   | Amendment to Amended and Restated Employment Agreement with George W. Haligowski                                                                              |   | **************                                              |
| 10.6                          |   | Change in Control Severance Agreement with Norval L. Bruce                                                                                                    |   | ********                                                    |
| 10.6a                         |   | Amendment to Change in Control Severance Agreement with Norval L. Bruce                                                                                       |   | **************                                              |
| 10.7                          |   | Change in Control Severance Agreement with Timothy M. Doyle                                                                                                   |   | ********                                                    |
| 10.7a                         |   | Amendment to Change in Control Severance Agreement with Timothy M. Doyle                                                                                      |   | **************                                              |
| 10.8                          |   | Change in Control Severance Agreement with Lyle C. Lodwick                                                                                                    |   | ********                                                    |
| 10.8a                         |   | Amendment to Change in Control Severance Agreement with Lyle C. Lodwick                                                                                       |   | **************                                              |
| 10.9                          |   | Change in Control Severance Agreement with Phillip E. Lombardi                                                                                                |   | ***********                                                 |
| 10.9a                         |   | Amendment to Change in Control Severance Agreement with Phillip E. Lombardi                                                                                   |   | **************                                              |
| 10.10                         |   | Recognition and Retention Plan                                                                                                                                |   | **                                                          |
| 10.11                         |   | Voluntary Retainer Stock and Deferred Compensation Plan for Outside Directors                                                                                 |   | ****                                                        |
| 10.12                         |   | Amended and Restated Supplemental Executive Retirement Plan                                                                                                   |   | ********                                                    |
| 10.13                         |   | Amended and Restated ITLA Capital Corporation Rabbi Trust Agreement                                                                                           |   | *********                                                   |
| 10.14                         |   | Amended and Restated Salary Continuation Plan                                                                                                                 |   | ********                                                    |
| 10.15                         |   | Form of Incentive Stock Option Agreement under ESIP                                                                                                           |   | ******                                                      |
| 10.1610.17                    |   | Form of Non-Qualified Stock Option Agreement under the ESIPForm of Non-Qualified Stock Option Agreement under the NEDP                                        |   | *************                                               |
| 10.18                         |   | Description of Named Executive Officer Salary, Bonus and Perquisite Arrangements for 2008                                                                     |   | **************                                              |
| 10.19                         |   | Description of Director Fee Arrangements                                                                                                                      |   | **************                                              |
| 10.20                         |   | Split Dollar Agreement                                                                                                                                        |   | ************                                                |
| 10.21                         |   | Stipulation and Consent to the Issuance of an Order to Cease and Desist                                                                                       |   | *************                                               |
| 10.22                         |   | Order to Cease and Desist dated February 17, 2009 issued by the Federal Deposit Insurance Corporation and the California Department of Financial Institutions |   | *************                                               |
| 11                            |   | Statement Regarding Computation of Per Share Earnings                                                                                                         |   | Not Required                                                |
| 13                            |   | Annual Report to Security Holders                                                                                                                             |   | None                                                        |
| 18                            |   | Letter Regarding Change in Accounting Principles                                                                                                              |   | None                                                        |
| 21                            |   | Subsidiaries of the Registrant                                                                                                                                |   | **************                                              |
| 22                            |   | Published Report Regarding Matters Submitted to Vote of Security Holders                                                                                      |   | None                                                        |
| 23.1                          |   | Consent of Ernst & Young LLP                                                                                                                              |   | **************                                              |
| 24                            |   | Power of Attorney                                                                                                                                             |   | None                                                        |
| 31.1                          |   | Rule 13a-14(a)/15d-14(a) Certification of Principal Executive Officer                                                                                         |   | 31.1                                                        |
| 31.2                          |   | Rule 13a-14(a)/15d-14(a) Certification of Principal Financial Officer                                                                                         |   | 31.2                                                        |
| 32                            |   | Section 1350 Certifications of Principal Executive Officer and Principal Financial Officer                                                                    |   | **************                                              |

| *                           | Filed as an exhibit to Imperial’s Registration Statement on Form S-1 (File No. 33-96518) filed with the Commission on September 1, 1995, pursuant to Section 5 of the Securities Act of 1933. |
|-----------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| * *                         | Filed as an exhibit to the Company’s Registration Statement on Form S-4 (File No. 333-03551) filed with the Commission on May 10, 1996, pursuant to Section 5 of the Securities Act of 1933.  |
| * * *                       | Filed as an exhibit to the Company’s Current Report on Form 8-K filed on December 7, 2007.                                                                                                    |
| * * * *                     | Filed as an exhibit to Amendment No. Two to the Company’s Registration Statement on Form S-4 (File No. 333-03551) filed with the Commission on June 19, 1996.                                 |
| * * * * *                   | Filed as an appendix to the Company’s definitive proxy materials filed on June 27, 2005.                                                                                                      |
| * * * * * *                 | Filed as an exhibit to the Company’s Current Report on Form 8-K filed on August 9, 2005.                                                                                                      |
| * * * * * * *               | Filed as an exhibit to the Company’s Current Report on Form 8-K filed on November 4, 2005.                                                                                                    |
| * * * * * * * *             | Filed as an exhibit to the Company’s Current Report on Form 8-K filed on February 24, 2006.                                                                                                   |
| * * * * * * * * *           | Filed as an exhibit to the Company’s Form 10-Q for the quarter ended June 30, 2006.                                                                                                           |
| * * * * * * * * * *         | The Company hereby agrees to furnish the SEC, upon request, copies of the instruments defining the rights of the holders of each issue of the Company's long-term debt.                             |
| * * * * * * * * * * *       | Filed as an exhibit to the Company’s Form 10-K for the year ended December 31, 2006.                                                                                                          |
| * * * * * * * * * * * *     | Filed as an exhibit to the Company’s Form 10-Q for the quarter ended June 30, 2007.                                                                                                           |
| * * * * * * * * * * * *     | Filed as an exhibit to the Company’s Form 10-K for the year ended December 31, 2007.                                                                                                          |
| * * * * * * * * * * * * *   | Filed as an exhibit to the Company’s Current Report on Form 8-K filed on February 20, 2009.                                                                                                   |
| * * * * * * * * * * * * * * | Filed as an exhibit to the initial filing of the Company’s Form 10-K for the year ended December 31, 2008.                                                                                    |